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Complex solutions under shear and pressure: A rheometer setup for X-ray scattering experiments
Institute for Materials Research, Geesthacht, Germany ; EMBL Hamburg, Hamburg, Germany.
Institute for Materials Research, Geesthacht, Germany.
Institute for Materials Research, Geesthacht, Germany.
Institute for Materials Research, Geesthacht, Germany.
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2017 (English)In: Journal of Synchrotron Radiation, ISSN 0909-0495, E-ISSN 1600-5775, Vol. 24, 646-652 p.Article in journal (Refereed) Published
Abstract [en]

A newly developed high-pressure rheometer for in situ X-ray scattering experiments is described. A commercial rheometer was modified in such a way that X-ray scattering experiments can be performed under different pressures and shear. First experiments were carried out on hyaluronan, a ubiquitous biopolymer that is important for different functions in the body such as articular joint lubrication. The data hint at a decreased electrostatic interaction at higher pressure, presumably due to the increase of the dielectric constant of water by 3% and the decrease of the free volume at 300 bar.

Place, publisher, year, edition, pages
International Union of Crystallography , 2017. Vol. 24, 646-652 p.
Keyword [en]
complex solutions, hyaluronan, pressure, rheology, small-angle X-ray scattering, Hyaluronic acid, Rheometers, Articular joints, Complex solution, Different pressures, High pressure, Situ x-ray scatterings, X ray scattering
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-29782DOI: 10.1107/S1600577517002648ScopusID: 2-s2.0-85018331890OAI: oai:DiVA.org:ri-29782DiVA: diva2:1108398
Note

 Funding details: European Synchrotron Radiation Facility

Available from: 2017-06-12 Created: 2017-06-12 Last updated: 2017-06-12Bibliographically approved

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